CVE-2026-20947

Microsoft SharePoint Server Remote Code Execution Vulnerability

CVE-2026-20947 is fixed in 3 products on 1 platform, first by KB5002828, released January 13, 2026. It is not reported as exploited. Patch Radar priority: High.

High

CVSS

8.8

Important

Exploitation

None reported

Exploitation Unlikely

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.1844

97th percentile

<p>Improper neutralization of special elements used in an sql command ('sql injection') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.</p>

Where it's fixed

Product	Fix	Released
Microsoft
Microsoft SharePoint Enterprise Server 2016	KB5002828	Jan 13, 2026
Microsoft SharePoint Enterprise Server 2016	KB5002827	Jan 13, 2026
Microsoft SharePoint Server 2019	KB5002825	Jan 13, 2026
Microsoft SharePoint Server 2019	KB5002823	Jan 13, 2026
Microsoft SharePoint Server Subscription Edition	KB5002822	Jan 13, 2026

Details

Published
January 13, 2026
Weakness
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20947

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